<script setup>
import { Edit, Delete, Plus } from "@element-plus/icons-vue";

import { ref } from "vue";

//文章分类数据模型
const categorys = ref([
  {
    id: 3,
    categoryName: "美食",
    categoryAlias: "my",
    createTime: "2023-09-02 12:06:59",
    updateTime: "2023-09-02 12:06:59",
  },
  {
    id: 4,
    categoryName: "娱乐",
    categoryAlias: "yl",
    createTime: "2023-09-02 12:08:16",
    updateTime: "2023-09-02 12:08:16",
  },
  {
    id: 5,
    categoryName: "军事",
    categoryAlias: "js",
    createTime: "2023-09-02 12:08:33",
    updateTime: "2023-09-02 12:08:33",
  },
]);

//用户搜索时选中的分类id
const categoryId = ref("");

//用户搜索时选中的发布状态
const state = ref("");

//文章列表数据模型
const articles = ref([
  {
    id: 5,
    title: "陕西旅游攻略",
    content: "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
    coverImg:
      "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
    state: "草稿",
    categoryId: 2,
    createTime: "2023-09-03 11:55:30",
    updateTime: "2023-09-03 11:55:30",
  },
  {
    id: 5,
    title: "陕西旅游攻略",
    content: "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
    coverImg:
      "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
    state: "草稿",
    categoryId: 2,
    createTime: "2023-09-03 11:55:30",
    updateTime: "2023-09-03 11:55:30",
  },
  {
    id: 5,
    title: "陕西旅游攻略",
    content: "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
    coverImg:
      "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
    state: "草稿",
    categoryId: 2,
    createTime: "2023-09-03 11:55:30",
    updateTime: "2023-09-03 11:55:30",
  },
]);

//分页条数据模型
const pageNum = ref(1); //当前页
const total = ref(20); //总条数
const pageSize = ref(3); //每页条数

//当每页条数发生了变化，调用此函数
const onSizeChange = (size) => {
  pageSize.value = size;
  articleList();
};
//当前页码发生变化，调用此函数
const onCurrentChange = (num) => {
  pageNum.value = num;
  articleList();
};

//回显文章分类
import {
  articleCategoryListService,
  articleListService,
  articleAddService,
  articleUpdateService,
  articleDeleteService,
} from "@/api/article.js";
const articleCategoryList = async () => {
  let result = await articleCategoryListService();
  categorys.value = result.data;
};

// 获取文章列表数据
const articleList = async () => {
  let params = {
    pageNum: pageNum.value,
    pageSize: pageSize.value,
    categoryId: categoryId.value ? categoryId.value : null,
    state: state.value ? state.value : null,
  };
  let result = await articleListService(params);

  //渲染视图
  total.value = result.data.total;
  articles.value = result.data.items;

  //处理数据，给数据模型扩展一个categoryName，分类名称
  for (let i = 0; i < articles.value.length; i++) {
    let article = articles.value[i];
    for (let j = 0; j < categorys.value.length; j++) {
      if (article.categoryId == categorys.value[j].id) {
        article.categoryName = categorys.value[j].categoryName;
      }
    }
  }
};

articleCategoryList();
articleList();

import { QuillEditor } from "@vueup/vue-quill";
import "@vueup/vue-quill/dist/vue-quill.snow.css";
//控制抽屉是否显示
const visibleDrawer = ref(false);
//添加表单数据模型
const articleModel = ref({
  title: "",
  categoryId: "",
  coverImg: "",
  content: "",
  state: "",
});

//定义变量，控制标题的展示
const title = ref("");

//导入token
import { useTokenStore } from "@/stores/token.js";
const tokenStore = useTokenStore();

//上传成功的回调函数
const uploadSuccess = (result) => {
  articleModel.value.coverImg = result.data;
  console.log(result.data);
};

import { ElMessage, ElMessageBox } from "element-plus";
//添加文章
const addArticle = async (clickState) => {
  //把发布状态赋值给数据模型
  articleModel.value.state = clickState;

  //调用接口
  let result = await articleAddService(articleModel.value);
  ElMessage.success(result.msg ? result.msg : "添加成功");

  //让抽屉消失
  visibleDrawer.value = false;

  //刷新当前列表
  articleList();
};

//这是编辑弹窗
const showDialog = (row) => {
  visibleDrawer.value = true;
  title.value = "编辑文章";
  //数据拷贝
  articleModel.value.title = row.title;
  articleModel.value.categoryId = row.categoryId;
  articleModel.value.coverImg = row.coverImg;
  articleModel.value.content = row.content;
  //扩展id属性,将来需要传递给后台，完成分类的修改
  articleModel.value.id = row.id;
};

// 编辑分类
const updateCategory = async (clickState) => {
  //把发布状态赋值给数据模型
  articleModel.value.state = clickState;

  //调用接口
  let result = await articleUpdateService(articleModel.value);
  ElMessage.success(result.msg ? result.msg : "修改成功");

  //调用获取所有分类的函数
  articleCategoryList();

  //隐藏弹窗
  visibleDrawer.value = false;
  //刷新列表
  articleList();
};

//清空模型的数据
const clearData = () => {
  articleModel.value.title = "";
  articleModel.value.categoryId = "";
  articleModel.value.coverImg = "";
  articleModel.value.content = "";
};

//删除
const deleteManage = (row) => {
  //提示用户  确认框

  ElMessageBox.confirm("你确认要删除该文章吗?", "温馨提示", {
    confirmButtonText: "确认",
    cancelButtonText: "取消",
    type: "warning",
  })
    .then(async () => {
      //调用接口
      let result = await articleDeleteService(row.id);
      ElMessage({
        type: "success",
        message: "删除成功",
      });
      //刷新列表
      articleList();
    })
    .catch(() => {
      ElMessage({
        type: "info",
        message: "用户取消了删除",
      });
    });
};

const reset = () => {
  //刷新列表
  articleList();
};
</script>
<template>
  <div class="box">
    <el-card class="page-container">
      <template #header>
        <div class="header">
          <span>文章管理</span>
          <div class="extra">
            <el-button
              type="primary"
              @click="
                visibleDrawer = true;
                title = '添加文章';
                clearData();
              "
              >添加文章</el-button
            >
          </div>
        </div>
      </template>
      <!-- 搜索表单 -->
      <el-form inline>
        <el-form-item label="文章分类：">
          <el-select
            class="el-select"
            placeholder="请选择"
            v-model="categoryId"
          >
            <el-option
              v-for="c in categorys"
              :key="c.id"
              :label="c.categoryName"
              :value="c.id"
            >
            </el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="发布状态：">
          <el-select class="el-select" placeholder="请选择" v-model="state">
            <el-option label="已发布" value="已发布"></el-option>
            <el-option label="草稿" value="草稿"></el-option>
          </el-select>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="articleList">搜索</el-button>
          <el-button
            @click="
              categoryId = '';
              state = '';
              reset();
            "
            >重置</el-button
          >
        </el-form-item>
      </el-form>
      <!-- 文章列表 -->
      <el-table :data="articles" style="width: 100%">
        <el-table-column
          label="文章标题"
          width="400"
          prop="title"
        ></el-table-column>
        <el-table-column label="分类" prop="categoryName"></el-table-column>
        <el-table-column label="发表时间" prop="createTime"> </el-table-column>
        <el-table-column label="状态" prop="state"></el-table-column>
        <el-table-column label="操作" width="100">
          <template #default="{ row }">
            <el-button
              :icon="Edit"
              circle
              plain
              type="primary"
              @click="showDialog(row)"
            ></el-button>
            <el-button
              :icon="Delete"
              circle
              plain
              type="danger"
              @click="deleteManage(row)"
            ></el-button>
          </template>
        </el-table-column>
        <template #empty>
          <el-empty description="没有数据" />
        </template>
      </el-table>
      <!-- 分页条 -->
      <el-pagination
        v-model:current-page="pageNum"
        v-model:page-size="pageSize"
        :page-sizes="[3, 5, 10, 15]"
        layout="jumper, total, sizes, prev, pager, next"
        background
        :total="total"
        @size-change="onSizeChange"
        @current-change="onCurrentChange"
        style="margin-top: 20px; justify-content: flex-end"
      />

      <!-- 抽屉 -->
      <el-drawer
        v-model="visibleDrawer"
        :title="title"
        direction="rtl"
        size="50%"
      >
        <!-- 添加文章表单 -->
        <el-form :model="articleModel" label-width="100px">
          <el-form-item label="文章标题">
            <el-input
              v-model="articleModel.title"
              placeholder="请输入标题"
            ></el-input>
          </el-form-item>
          <el-form-item label="文章分类">
            <el-select placeholder="请选择" v-model="articleModel.categoryId">
              <el-option
                v-for="c in categorys"
                :key="c.id"
                :label="c.categoryName"
                :value="c.id"
              >
              </el-option>
            </el-select>
          </el-form-item>
          <el-form-item label="文章封面">
            <!-- auto-upload:色这是狗自动上传
                        action：设置服务器接口路径
                        name：设置删除的文件字段名
                        headers:设置删除的请求头
                        on-sccess：设置上传成功的回调函数 
                    -->
            <el-upload
              class="avatar-uploader"
              :auto-upload="true"
              :show-file-list="false"
              action="/api/upload"
              name="file"
              :headers="{ Authorization: tokenStore.token }"
              :on-success="uploadSuccess"
            >
              <img
                v-if="articleModel.coverImg"
                :src="articleModel.coverImg"
                class="avatar"
              />
              <el-icon v-else class="avatar-uploader-icon">
                <Plus />
              </el-icon>
            </el-upload>
          </el-form-item>
          <el-form-item label="文章内容">
            <div class="editor">
              <quill-editor
                theme="snow"
                v-model:content="articleModel.content"
                contentType="html"
              >
              </quill-editor>
            </div>
          </el-form-item>
          <el-form-item>
            <!-- : updateCategory()   -->
            <el-button
              type="primary"
              @click="
                title == '添加文章'
                  ? addArticle('已发布')
                  : updateCategory('已发布')
              "
              >发布</el-button
            >
            <el-button
              type="info"
              @click="
                title == '添加文章'
                  ? addArticle('草稿')
                  : updateCategory('草稿')
              "
              >草稿</el-button
            >
          </el-form-item>
        </el-form>
      </el-drawer>
    </el-card>
  </div>
</template>
<style lang="scss" scoped>
.box {
  -webkit-user-select: none;

  -moz-user-select: none;

  -ms-user-select: none;

  user-select: none;
}
.page-container {
  min-height: 100%;
  box-sizing: border-box;

  .header {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
}

.avatar-uploader {
  :deep() {
    .avatar {
      width: 178px;
      height: 178px;
      display: block;
    }

    .el-upload {
      border: 1px dashed var(--el-border-color);
      border-radius: 6px;
      cursor: pointer;
      position: relative;
      overflow: hidden;
      transition: var(--el-transition-duration-fast);
    }

    .el-upload:hover {
      border-color: var(--el-color-primary);
    }

    .el-icon.avatar-uploader-icon {
      font-size: 28px;
      color: #8c939d;
      width: 178px;
      height: 178px;
      text-align: center;
    }
  }
}
.editor {
  width: 100%;
  :deep(.ql-editor) {
    min-height: 200px;
  }
}
.el-select {
  width: 100px;
}
</style>
